Parent child reading is a reading activity where parents and children share stories. According to the survey results, parent-child reading, it has a very positive impact on children's cognition, language development, reading interest, emotional communication, social skills, and independent reading habits. At the same time, it is conducive to establishing a closer relationship between parents and children. This study aims to explore the impact of parent-child reading on primary school students' autonomous reading ability in the context of preschool transition, and propose corresponding strategies. Experimental data shows that children who participate in parent-child reading activities from an early age are more likely to develop independent reading habits, indicating that parent-child reading is very important for cultivating children's independent reading ability. Therefore, research suggests that it is necessary to strengthen training in parent-child reading for children, in order to cultivate their independent reading ability and lay a solid foundation for their future. So parents, schools, and communities should all work together to promote parent-child reading activities, so that more children can enjoy the fun of reading.